From: Nicolai Hähnle Date: Sat, 12 Dec 2015 16:42:23 +0000 (-0500) Subject: drm/ttm: fix documentation of ttm_bo_reserve X-Git-Tag: v5.15~14379^2~19^2~113 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6beb8201bbc41a50ccf2c3b0aecfc93c6d8be763;p=platform%2Fkernel%2Flinux-starfive.git drm/ttm: fix documentation of ttm_bo_reserve Previously, the comment was inconsistent. EDEADLK is what the ww_mutex mechanism really returns. Signed-off-by: Nicolai Hähnle Signed-off-by: Alex Deucher --- diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 813042ce..3d4bf08 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -826,10 +826,10 @@ static inline int __ttm_bo_reserve(struct ttm_buffer_object *bo, * reserved, the validation sequence is checked against the validation * sequence of the process currently reserving the buffer, * and if the current validation sequence is greater than that of the process - * holding the reservation, the function returns -EAGAIN. Otherwise it sleeps + * holding the reservation, the function returns -EDEADLK. Otherwise it sleeps * waiting for the buffer to become unreserved, after which it retries * reserving. - * The caller should, when receiving an -EAGAIN error + * The caller should, when receiving an -EDEADLK error * release all its buffer reservations, wait for @bo to become unreserved, and * then rerun the validation with the same validation sequence. This procedure * will always guarantee that the process with the lowest validation sequence